Bolter.



Patented Nov; 27, |900.

NCI;J 662,666.

l w. L. BURNER.

-BOLTER;

(Applicemn man Feb; 27. 1900,)

4 Sheets-Sheet '|v.

(Ilo Model.)

` 1N VEA/TUR No. 662,666. Patented Nov. 27, |900.

w. L. BURNER.

BLTER.

` (Application led Feb, 27. 1900.) (lo Model.) 4 Sheets-Sheet 2.

WIM/.125555 l /NVEIVTOR we mams PETER: cn, moraumo., wAsNmoroN. u. c,

Patented Nov. 27, |900.

w. L. BURNER.

BULTER.

(Application led. Feb. 27, 1900.)

4 Sheets-Sheet 3.

W/T/VESSES xs Firms co. PHovauTuu.. msm NGTou. n c.

Patented Nov. 27, |900. W. L. BURNER.

BOL-TER.

(Appummn med Feb. 27, 1900.)

(No Model.)

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THF. Noni uns ro.. momumo.. WASHINGTON' D' C' Unrrrin ST/Irns Farrar rricri.

WILLIAM L. BURNER, OF COLUMBUS, OHIO, ASSIGNOR TO THE OASE MANUFACTURING COMPANY, OF SAME PLACE.

BOLTER.

SPECIFICATION forming part of Letters Patent N o. 662,666, dated November 27, 1900'. Application filed February 27, 1900l Serial-N0. 6,750. ,llo model.)

To all whom, it may concern:

Beit known that I, WILLIAM L. BURNER, a citizen of the United States, and a resident of Columbus,in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Bolters, of which the following is a specification.

My present invention is an improvement on that construction of bolter shown, described, and claimed in United States Letters Patent No. 645,453, granted March 13, 1900, for improvement in bolters on my application led the lst day of February, 1898, Serial No. 668,764.

My improvements consist in certain novel features of construction whereby the usefulness of such a machine is greatly enhanced, as hereinafter described and claimed.

YIn order thatmyinvention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure I is a vertical longitudinal section of my improved bolter on the line I I, Fig. III. Fig. II is a vertical longitudinal section of the same on the line II II, Fig. III. Fig. III is a vertical transverse section ofthe same on the line III III, Figs. I and II. Fig. III is a detail vertical section of a bearing-bracket and socket-nut. Fig. IV is a perspective View of the upper member of a lower outer sieve drawer or box. Fig. V is a perspective view of the lower member of the same. Fig.VI is a vertical transverse section on the line VI VI, Figs. IV and V. Fig.VII is a detail elevation of the cross-bar and pawl-supporting block and a transverse section of the rack-bar. Fig. VIII is a vertical transverse section on the line VIII VIII, Fig. VII.

lis the base-frame of the machine, on which the screen and the power mechanism forshaking the screen are supported. At each corner of the base-frame are located step-bearings 2, in which the lower ends of screen-supporting rods 3 are loosely inserted, so as to enable them to vibrate therein. The upper ends of these rods are formed with screw-threads 3a to adapt them to receive nuts 4, which have sockets 4a, and are adjustable thereon for leveling the screen and locked and held at the required height by lock-nuts 5, which are provided with radial arms 5 for hand adjustment and are located thereunder.

6 is the screen, having a supporting-frame comprising longitudinal side timbers 7 and transverse end timbers 8, having extensions 82L and`secured to the longitudinal timbers.

9 represents end blocks forming tables for the screen and bolted thereto over the power device.

l represents metal bearing-brackets secured by suitable fastenings ll to the under side of the extensions 8a of the screen-supporting frame. These brackets have pendent conical parts l0, formed with rounded bearings lOb, located in the sockets 4a of the nuts 4, whereby the screen-supporting frame is loosely mounted on the screen-supporting rods 3.

l2 represents uprights located on and secured to the screen-supporting frame and surmounted by longitudinal timbers 13 for bracing the body of the screen.

14 represents longitudinal side walls, and l represents longitudinalslceleton partitions dividing the space between the side walls into a series of sieve-compartments I6. Extending across the top of the body are a series of bracing-strips 17, secured by vertical tie-rods 1S, fastened at their lower ends to the screensupporting frame and provided with securing-nuts 19 and washers 20 above the strips. Beneath the longitudinal partitions the screen-supporting frame is provided with longitudinal outer strips 2l and with a central strip 21a, from which extend the intermediate tie-rods I8. Inclined outwardly from the outer strips 2l are longitudinal upper outer bottoms 22, leading to vertical longitudinal partitions 23, and also inclined outwardly from the central strip 21a are longitudinal lower inner bottoms 24, extending to a point beneath the outer bottoms. The outer and inner bottoms are divided by transverse partitions 25 into outer chutes 26 and inner chutes 27. Beneath the discharge ends of the chutes of the screen-supporting frame and secured thereto are subframes 28, each subframe having a series of outer spouts'29, inclinedlongitudinally toward one end of the screen, two outer vertical spout-sections and 31, located at one end of the subframe,

IOO

an outer vertical spout--section 32, located at the other end of the subframe, a series o1' inner spouts 34, inclined longitudinally toward the other end of the screen, and three inner vertical spout-sections 35, 36, and 37,

all located at one end of the subframe. The outer chutes 26 connect with the outer spouts 29 and the inner chutes 27 with the inner spouts 34. The chutes 22a 22b 22c and 27a, 27h, and 27C connect, respectively, with the spout-sections 30 31 32 and 35, 36, and 37. Each of the spouts and spout-sec tions at its discharge end is provided with a collar 38 for the attach ment of its appropriate iexible sleeve or tube 39, through which the material is directed to its receiving chamber or receptacle. 40 are outer parts of the side casings,which are supportedonthebase-frame on the opposite sides thereof. Each outer part is divided by a vertical partition 41 into an outer receiving-chamber 42 and an outer receptacle 43. The receiving-chan'iber 42 is divided by down WardIy-convergingpartitions 44 and a valve-bearing block 45, so as to provide two outlets 47 and 48 on opposite sides of the bearing-block 45, which are controlled by an upwardly-extending cant board or valve 49,which acts to conduct the material passing through the receiving-chamber in the desired direction, according to the position in which it is placed between that shown in full lines and that shown in dotted lines in Fig. I.

50 is an inner part of the casing divided by vertical partitions 51, 52, and 53 into an inner receiving-chamber 54 and inner receptacles 55, 56, and 57. In front of the inner part of the casing is an outer part 58, divided by a partition 59 into outer receptacles 60 and 61.

The receivingchamber 54 of the inner part is also divided by downwardly-converging partitions 62 anda valve-bearing block 63, so as to provide two outlets 64 and 65, which are controlled by an upwardly-extending cant board or valve 66, which acts to conduct the material passing` through the receiving-charm ber in the desired direction. This cant board or valve 66 can be moved from the position shown in full lines to the position shown in dotted lines, Fig. Il. The top 69 of the casing is provided with openings 70, having collars 71 for the attachment of the flexible sleeves or tubes leading thereto.

72 is a suitable framing built on the baseframe for supporting the power device for shaking the screen.

73 represents step-bearings located on the base-frame, in which are inserted the lower ends of vertical shafts 74.

75 represents shaft-boxes sui-mounted by oil-cups 76. The upper ends of the shafts carry pulleys 77, each provided with an eccentricallyarranged pin 78, journaled in the central blocks ot' the screen and connected. by a belt 79.

is a driving-pulley fixed to one of the vertical shafts.

81 represents feed-tubes located at one end of the sieve-compartments, through which the material to be treated is cond ucted to .the screen. Located within each of the sieve-compartments 16 area series of three removable sieve-drawers or sieve-boxes 82, 83, and 84, superposed one on the other and provided with handles 85, whereby they can be withdrawn. The construction of one of these sieve-drawers or sieve-boxes is clearly shown in detail in Figs. IV,V,VI,VII, and VIII, which represent the lower sieve-drawer or sieve-box 84 of an outer series thereof.

86 and 87 are respectively the lower and upper members of the sieve-drawer, fitted together, as shown. Between the two members is secured the sieve-cloth 88, inclined so as to tail toward the rear end thereof. The lower member is constructed nea-r the ends thereof with transverse partitions 89, providing` a single spout-section 90 atits rear end and a chamber at its front end subdivided by a partition 92 into an outer spout-section 93 and inner spout-section 94. The space between the transverse partitions 89 provides a brushchamber 95. Extending along each side of the brush-chamber are rearwardly-inclined longitudinal strips 96, between and on which a brush-frame is adapted to slide back and forth, being propelled automatically, as hereinafterdescribed. Thisbrush-frameconsists of a pair of longitudinal side pieces 97 and transverse end pieces 98, having recesses 98a at their ends provided with wear-plates 99 where th e y are adapted to slid e on rearwardl-yinclined longitudinal rods or rails 100, supported at their ends in the transverse partitions 89 and parallel with longitudinal strips 96. To the transverse end pieces 98 are secured the brush-strips 101, having upwardlyextending cleaning -brushes 102, bearing against the sieve-cloth. The brush-frame is automatically reciprocated by the following means:

103 is a longitudinal centrallyarranged IOO IOS

IIO

rack-bar having upwardly-projecting teeth 103iL and end depressions or recesses 103b and is supported in the transverse end pieces 98. Over the brush-chamber beneath the sievecloth is secu red a centrally-arranged bar 104. Depending from this bar is a pawl-frame consisting of an inner plate 105, seated in the bar, journal-blocks 106, and outer plate 107.

108 is a pendent pawl having a pivot-piu 1089, whereby it is loosely mounted between the journal-blocks 106 and the inner plate 105.- The outer plate 107 and journal-blocks 106 are secured to the inner plate 105 by bolts 109, and the pawl-frame is fastened to the transverse bar by bolts 110. The rack-bar IZO 1031), where it assumes a pendent position and is automatically reversed by the movement of the screen to return the brush-frame.

111 represents spring-cushions or rubber buffers located on the transverse partitions 89 and adapted to receive the impact of the advancing brush-frame and to start it on its return trip simultaneously with the disengagement of the pawl,whicli causes the reversal of the latter. Located obliquely across the path of the cleaning-lnushes 102 and secured to the lower member over the brush-chamber are brush-cleaning rods 112. The upper member S7 of the sieve-drawer has a forwardlyinclined carrying board or top 113, provided with an opening 113i, delivering thev material onto the forward end of the sieve cloth 88. Near the rear end of the carrying-board 113 and located over the rear transverse partition 89is a bridge-piece 114iE through the opening 115, beneath which the material tails oft' into the rear spout-section 90. The intermediate sieve-drawer 83 of the outer series of sieve-drawers has its sieve-cloth 88 inclined forwardly, so that the bridge-piece 114, with opening 115, is located at the forward end, and the material tails off into the spout-section 94C through spout-section 94C. The carrying-board of this sieve-drawer 83 is inclined tow-ard the rear end of the screen. Consequently the material tails ofi through opening 1131. T-he upper sieve-drawer 82 of the outer series has its sieve-cloth 83 inclined forward, so as to tail off through the end opening 115 into the spout-sections 93h 93 93. The top 116 of this upper sieve-drawer 82 has an opening 116, with whichafeed-tube S1 is connected. The inner series of sieve-drawers have all their sieve-cloths inclined forwardly, as their respective spout-spections 90 94: 94 and 931 93 93 from the respective sieve-cloths S8 8S 88h are located at the front end of the screen. The sieve-cloths 88,88,and S8", respectively, of the upper, intermediate, and lower sieve-drawers have different degrees ot' Fineness,the lower sieve -cloth 8S being of the finest mesh. The carrying-boards 113 ot' the lower and intermediate sieve-drawers 84: 83 are necessarily inclined rearwardly.

117 represents oil-cups having oil-tubes 117, leading tothe bearings of the eccentricpins 78 in the central bearing-blocks 9. The material is sifted through the machine in the direction indicated by the arrows.

Both sides of the bolter are similar in construction, so that in describing one half of the machine the description sets forth the other half thereof.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

l. A bolter comprising a base-frame, the step-bearings mounted thereon, a screen-su pporting frame, the brackets depending from the screen-supporting frame and having conical parts formed with rounded bearings, the screen-supporting rods looselyinserted in the step-bearings and having screw-threaded upper ends, the lock-nuts adjustable on the screw-threaded ends of the rods, and. the nuts having sockets receiving the rounded bearings of the brackets and adjustable on the screw-threaded ends of the rods above the lock-nuts; substantially as described.y

2. A bolter comprising side casings; each casing being constructed with an outer part having a front chamber and a front receptacle at one end of the casing, and an inner part having a rear chamber and three rear and two front receptacles at the other end of the casing, a screen having longitudinal sievecompartments, a series of removable sievedrawers located in each of the sieve-compartments, a screen-supportingframe constructed with transversely-partitioned outer and inner inclined bottoms extending toward the sides of the screen and the subframes each having a series of outer spouts inclined longitudinally in one direction toward the outer charnber of the casing and spout-sections in line with the front receptacles of the casing and a series of inner spouts inclined longitudinally in the other direction toward the inner' chamber and spout-sections in line with the inner receptacles, and flexible sleeves connecting the inclined spouts with their chambers and the spout-sections with their receptacles; substantially as described.

3. Asieve-drawercomprisinglower and upper members, the lower member being constructed with a transverse partition dividing it into a forward spout-section and into a brush-chamber, and the upper member being constructed with a top having a feed-opening and a bridge-piece providing a dischargeopening over the partition ol the lower member, a sieve-cloth located between the lower and upper members and inclined toward. the discharge-opening and a reciprocating brush within the brush-chamber; substantially as described.

4. Asieve-drawercomprisinglowerand upper members, the lower member being constructed with a transverse partition dividing it into an end chamber and into a brushchamber, and a partition dividing the end chamber into outer and inner spout-sections, the upper member being constructed with a carrying-board having a discharge-opening and inclined toward the discharge-opening thereof, and a bridge-piece providing a discharge-opening over the lower member, a sieve-cloth on the lower member inclined toward the discharge-opening of the bridgepiece and a reciprocatingbrush within the brush-chamber; substantially as described.

5. Asieve-drawercomprisinglowerand upper members, the lower member beingI constructed with transverse partitions dividing it into a rear spout-section, into an end chamber, and into a brush-chamber, and a parti-` IOO IIO

discharge-opening and inclined toward the discharge-opening thereof, and a bridge-piece providing a discharge-opening over the rear spout-section, a sieve-cloth inclined toward the dischargelopening of the bridge-piece and a reciprocating brush Within the brush-chamber; substantially as described.

6. Asieve-drawer comprisingabrush-chamber, the inclined longitudinal side strips, the inclined longitudinal rods, the brush-frame having longitudinal bars, and transverse bars formed With end recesses receiving the longitudinal rods upon which they slide, the brushes secured to the transverse bars a centrally-arranged longitudinal bar having end depressions and secured to the transverse bars, aiXed transverse bar secured to the sieve-drawer, and a pendent pawl-frame secured to the fixed transverse bar carrying a pawl adapted to engage the centrally-arranged longitudinal bar which passes therethrough for automatically reciprocating the brush-frame; substantially as described.

WILLIAM L. BURNER.

Witnesses:

C. N. SHOUGH, R. B. BEGsoN. 

